Pronunciation: (tril),[key] —v.t. 1. to sing or play with a vibratory or quavering effect.
2. Phonet.to produce (a sound) with a trill.
3. (of birds, insects, etc.) to sing or utter in a succession of rapidly alternating sounds.
—v.i. 1. to resound vibrantly, or with a rapid succession of sounds, as the voice, song, or laughter.
2. to utter or make a sound or succession of sounds resembling such singing, as a bird, frog, grasshopper, or person laughing.
3. to execute a shake or trill with the voice or on a musical instrument.
4. Phonet.to execute a trill, esp. with the tongue, as while singing, talking, or whistling.
—n. 1. the act or sound of trilling.
2. Music.a rapid alternation of two adjacent tones; a shake.
3. a similar sound, or succession of sounds, uttered or made by a bird, an insect, a person laughing, etc.
4. Phonet. a. a sequence of repetitive, rapid, vibratory movements produced in any free articulator or membrane by a rush of air expelled from the lungs and often causing a corresponding sequence of contacts between the vibrating articulator and another organ or surface.
b. a speech sound produced by such a trill.
Pronunciation: (tril),[key]Archaic, —v.i. to flow in a thin stream; trickle.